Time-lock.



PATENTED NOV. 19, 1907.

W. H. TAYLOR.

TIME LOOK.

APPLICATION mum JULY 30, 1907.

3 SHBBTSSHEBT l.

INVENTOR Al/omey THE NORRIS PETERS co., WASHINGTON, c.

No. 871,534. PATENTBD NOV. 19, 1907.

w. H. TAYLOR.

TIME LOOK.

APPLICATION FILED JULY 30, 1907.

3 SHEETS-SHEET 2.

wlrzwgsszs I %%OR IHE NORRIS PETERS coy, WASHINGTON, n. c.

PATENTED NOV. 19, 1907. W. H. TAYLOR.

TIME LOCK.

APPLICATION FILED JULY 30, 1907.

3 SHEETS-SHEET 3.

mm l mumum! m UNITED STATES PATENT OFFICE.

WARREN H. TAYLOR, OF STAMFORD, CONNECTICUT, ASSIGNOR TO THE YALE & TOWNEMANUFACTURING COMPANY, OF STAMFORD, CONNECTICUT.

TIME-LOCK.

Specification of Letters Patent.

Patented Nov. 19, 1907.

Application filed July 30' 1907. Serial No. 386.307.

To all whom-it mag concern:

Be it known that I, WARREN H. TAYLOR, of Stamford, in the county ofFairfield and State of Connecticut, have invented certain new and usefulImprovements in Time- Locks; and I do hereby declare the following to-beafull, clear, and exact description of the invention, such as willenable others skilled in. the art to which it appertains to make and usethe same.

My invention relates to an improvement in time locks.

Time looks as constructed have a plurality of time movements, eachhaving a rotary front dial provided with a tripping pin, each pinadapted to engage a lug on the movement bar, the movement of the latter,at the proper time efiecting the release of the locking mechanism as iswell understood.

It is conceivable, that if the lugs on the movement bar be stationary orrigidly fixed to the bar, as has been the universal custom, and. thetime movements not being exactly in time with one another, or not beingwound up exactly alike, the pin on the front dial of one movement, wouldmake contact with its lug on the rear face of the movement bar, inadvance of the others, thus throwing all the work on the one movement.If. under such conditions the movement bar be blocked, or greater powerrequired to move it than can be exerted by one time movement alone, itmight result bar, and my invention consists in yielding .meansinterposed between the time work mechanism and a part operated thereby,

wherebyif the several time movements are not accurately set, and themovement bar be blocked, a part of the mechanism actuated by thetripping pins on the front dials,

will give or yield, thereby permitting the tripping pin on the fastesttime movement to contmue its movement, until the second and thirdmovements have caught up and are exerting their pressure upon theirrespective lugs on the movement bar.

My invention further consists in the parts and combinations of parts aswill be more fully described and pointed out in the claims.

In the accompanying drawings; Figure 1 is a view in elevation showingthe time lock combined with an automatic unlocking device which at theproper time and when released by the time lock furnishes the power towithdraw the locking bolts. Fig. 2 is a similar view showing the timelock having a device for dogging the bolt work mechanism, the latterbeing operated by hand. Fig. 3 is a face view of my time lock. Fig. 4 isa view in elevation of the front dials, movement bar, and supportinglevers for the latter, the casing being broken away so as to expose theparts and Fig. 5 is a view of the rear face of the movement bar showingthe yielding lugs supporting levers and secondary bar.

In the drawings I have shown a triple time lock movement, but I wouldhave it understood that double or quadruple movements may be used.

1 represents a casing, and 2, the time lock movements therein. Themovements shown, are of the Yale & Towne Manufacturin Company type, eachbeing provided with ends, and connected at their lower ends by asecondary bar 7 of substantially equal weight to the operating bar so asto counterbalance same.

The front dial of each time movement-is provided with a tripping pin 10,each of which moves in the path of a lug 11, the several lugs beingpivotally mounted on the rear face of the movement bar 5. The upper endof each lug 11 is bent at right angles to its body, and said bent endspass through elongated slots 12 in the movement bar and project beyondthe front face thereof.

Secured to the front face of the movement bar are a series ofapproximately V-shaped springs, one for each time movement. One memberof each spring bears against a pin 13 secured to the front face ofmovement bar 5, while the other member of each spring bears against theprojecting end of its pivoted lug 1 and yieldingly holds same againstone end of the slot, and permits the lug to yield in the direction oftravel of the tripping pins on the front dials. This yielding movementof the lugs can represent the distance traveled in one or more hours, bythe tripping pin on the dial, hence it will be seen that if one movementbe faster than the other, and movement bar 5 be blocked from any causewhatsoever, the spring will yield, thus permitting the dial of thefaster movement to continue until the tripping pins of one or both ofthe other dials engage their respective lugs-on the movement bar, thustransmitting to the latter, the combined power of all the springs. EachV-shaped spring is strong enough to permit the tripping pin 10 to movethe movement bar, when said pin engages the spring, and it is only whenthe movement bar is blocked that any compression of the spring takesplace.

Under ordinary conditions a pull of less than one pound is required torelease the bolt .mechanism; each time movement .is tested under a pullof not less than ten pounds and will continue to its unlocking ointunder this dead pull, consequently with the three movements, I get acombined pull exceeding thirty pounds which is an ample margin ofsafety, and by introducing the yielding lugs between the dials and thebolt work unlocking or releasing device, I in sure the help of the othertime movements in the event the faster movement be unable to alone shiftthe movement bar. The yielding means shown for accomplishing this end,is only one of many that could beused for accomplishing the same end,hence I would have it understood that I do not confine myself to theconstruction shown but claim broadly yielding means of any kindinterposed between the dials and unlocking bar for accomplishing thedesired end. In Fig. 1, I have shown the time locks connected by a hook14 with an automatic device for retracting the bolts. This hook 14 ispivoted at 15 and its upper end rests within a slot in the lower face ofthe secondary bar 7. As the secondary bar is moved longitudinally by thetime movements as explained, it turns the hook 14 thus disengaging thelatter from the levers by which the operating springs of the automaticbolt retracting mechanism are held under tension, and permitting thesprings to withdraw the bolts.

In the construction shown in Fig. 2 the movement bar actuates a dog 15which when set closes the opening 16 and dogs the movement of the tonguepiece 17 on the bolt carrying bar 18. At the pro er time, the movementof the movementar withdraws the dog 15 out of the path of movement ofthe tongue 17, thereby permitting the carrying bar 18 to be shifted byhand in the ordinary manner.

It is, evident that many slight changes might be resorted to in therelative arrangement of parts shown and described without departing fromthe spirit and scope of my invention hence I would have it understoodthat I do not wish to confine myself to the eXact construction of partsshown and described, but,

Having fully described my invention what I claim as new and desire tosecure by Letters-Patent, is

1. In a time lock, the combination of a time movement, and devicesoperated thereby for releasing the bolt work of the lock, the saiddevices including a part constructed to yield in the event the freemovement of any of the parts between the time movement and the bolt workbe blocked.

In a time lock, the combination of a plurality of time movements anddevices operated thereby for releasing the bolt work of the lock, thesaid devices including a device for each time movement, constructed toyield orgive and permit of the continued operation of the timemovements, in the event the free movement of any of the parts betweenthe time movements and the boltwork be blocked.

3. In a time lock the combination of a plurality of time movements eachhaving a front dial carrying a tripping pin, a movement bar common toall of said time movements, and yielding means on said movement baradapted to be engaged by the tripping pins on the dials to move said barin a direction to release the bolt work.

4. In a time lock, the combination of a plurality of time movements eachcarrying a tripping pin, a bolt work unlocking device, a movement barcommon to all the time movements, means for transmitting motionfrom themovement bar to the bolt work unlocking device, and yielding parts onthe movement bar adapted to be engaged by the tripping pins of theseveral time movements to move said bar in a direction to release thebolt work.

5. In a time lock, the combination with a plurality-of time movementseach having a tripping pin, of a movement bar common to all the timemovements and a yielding lug for each tripping pin, carried by the saidmovement bar the said lugs adapted to be engaged by the pins whereby thebar is moved in a direction to release the bolt work.

6. In a time lock, the combination with a plurality of time movementseach carrying a tripping pin, of a movement bar common to all the timemovements, a movable lug for each time movement, carried by saidmovement bar, and a spring support for each movable lug.

7. In a time lock, the combinationwith a plurality of time movementseach carrying a tripping pin, of a movement bar common to all the timemovements, a lug for each time movement, pivoted to the movement bar,and a spring support for the free end of each pivoted lug.

8. In a time lock, the combination with a plurality of time movementseach carrying a tripping pin, of a movement bar common to all the timemovements, a series of lugs pivoted to said movement bar, each lughaving a bent end passing through a slot in the movement bar, and aspring supporting the bent end of each lug.

9. In a time lock the combination of a l plurality of time movements,means for releasing the bolt work of a safe or vault door, and ayielding device interposed between the bolt Work releasing device andone or more of said time movements and through which WARREN II. TAYLOR.

WVitnesses:

IN. E. WEssoN, CHARLES E. VAIL.

